Home / 12,087.93-16,680.90-6,783.03

Finding the Fourth Proportional to 12,087.93, 16,680.90 and 6,783.03

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Solution

The fourth proportional to 12,087.93, 16,680.90 and 6,783.03 is: 9,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.93 : 16,680.90 = 6,783.03 : x
  2. Step 2: Convert to fraction form
    12,087.93/16,680.90 = 6,783.03/x
  3. Step 3: Cross multiply
    12,087.93x = 16,680.90 × 6,783.03
  4. Step 4: Simplify right side
    12,087.93x = 113,147,045.13
  5. Step 5: Solve for x
    x = 113,147,045.13/12,087.93
  6. Step 6: Final answer
    x = 9,360.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.